/ Link to the "Previous" page
/ - available local variables
/   url:           url to the previous page
/   current_page:  a page object for the currently displayed page
/   total_pages:   total number of pages
/   per_page:      number of items to fetch per page
/   remote:        data-remote
span.prev
  a href=url rel="prev" remote=remote  data-page=(current_page - 1) = t('views.pagination.previous').html_safe
